SIFT BEARING STORE CATALOG

3984/3919RBTimkenTapered Roller

3984/3919RB is a Timken tapered roller bearing, bore 66.67 mm, O.D. 112.71 mm, width 30.05 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d66.67mm
Outside dia. D112.71mm
Width B30.05mm
Weight1.12kg
Mean dia. dm89.7mm

Original catalogue drawing - Timken - Single Row

3984/3919RB Timken Tapered Roller bearing catalogue drawing

Scanned from the manufacturer catalogue page listing this part number. All part numbers printed on that table share the same drawing.

Scale cross-section

DdBOutside dia. D112.71 mmBore d66.67 mmWidth B30.05 mmCup width C24.61 mm

Blue = inner / outer ring, yellow = rolling element. Drawn to scale from this part's own dimensions for selection reference only - not a manufacturing or assembly drawing.

Dimension table (mm / inch)

SymbolDimensionmminch
dBore diameter66.6752.625
DOutside diameter112.7124.4375
BInner-ring / bearing width30.0481.183
TOverall assembly width30.1621.1875
CCup / outer-ring width24.6050.9687
rChamfer (min)3.30.1299

Notes

Tapered roller bearings are cone / cup assemblies; cone and cup weights are listed separately and the total is their sum. Weights are given in kg. Load ratings are shown in both the original catalogue units and the converted value (1 N = 0.2248 lbf). Data is provided for selection reference only - confirm against the latest official catalogue before ordering.

Main dimensions

Bore d (mm)66.675
Bore d (in)2.6250
Outside dia. D (mm)112.712
Outside dia. D (in)4.4375
Width B (mm)30.048
Width B (in)1.1830
Overall width T (mm)30.162
Overall width T (in)1.1875
Cup width C (mm)24.605
Cup width C (in).9687

Weight

Cone weight (kg)0.7
Cup weight (kg)0.42
Total weight (kg)1.12

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)3.5
Housing fillet r max (mm)3.3

Source & traceability

BrandTimken
Source catalogueTimken Bearing Dimension Catalog
Catalogue pagep.312 (dimensions) / p.55 (cone) / p.55 (cup)

Dimensions and component weights only - this catalogue publishes no load ratings or speeds.

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
K3984-3920FAGTapered Roller66.67112.7130.05119 kN1.31
K3994-3920FAGTapered Roller66.67112.7130.05119 kN1.31
3984/3920NSKTapered Roller66.67112.7130.0527,000 lbs1.148

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
3984/3920TimkenTapered Roller66.67112.7130.05139 kN1.15
3984/3925TimkenTapered Roller66.67112.7130.05139 kN1.16
3984/3926TimkenTapered Roller66.67112.7130.05139 kN1.23
3994/3920TimkenTapered Roller66.67112.7130.05139 kN1.15
3994/3925TimkenTapered Roller66.67112.7130.05139 kN1.16
3994/3926TimkenTapered Roller66.67112.7130.05139 kN1.23

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
3984/3920TimkenTapered Roller66.67112.7130.05139 kN1.15
3984/3925TimkenTapered Roller66.67112.7130.05139 kN1.16
3984/3926TimkenTapered Roller66.67112.7130.05139 kN1.23
3984/3927XTimkenTapered Roller66.6711030.05139 kN1.05

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
29590/29520TimkenTapered Roller66.67107.9525.4131 kN0.84
29590/29521TimkenTapered Roller66.6711025.4131 kN0.91
29590/29522TimkenTapered Roller66.67107.9525.4131 kN0.85
33261/33461TimkenTapered Roller66.67117.4730.16--
33261/33462TimkenTapered Roller66.67117.4730.16138 kN1.32
33262/33461TimkenTapered Roller66.67117.4730.16138 kN1.34
33262/33462TimkenTapered Roller66.67117.4730.16138 kN1.33
33262/33462DTimkenTapered Roller66.67117.4766.67241 kN2.95

Request a quotation for 3984/3919RB

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